Here, a speaker reaches out with a question that sounds casual but carries a lot of weight: "Do you ever get that feeling?" The feeling is hard to name, so the speaker simply calls it "that empty feeling." What follows is a short list of fears, each one a little more painful than the last. First, being unneeded. Then, the idea that disappearing would change nothing. Finally, the suspicion that even friends don't really see them as a friend, and that everyone else feels the same way.
The mood is quiet, lonely, and a bit raw. The short lines and missing punctuation make it feel like thoughts spilling out one after another, without a neat ending. The opening question also suggests the speaker is looking for company in the feeling, hoping someone will say "yes, me too." That small hope sits underneath all the emptiness, and it gives the poem its ache.